This enables the use of HTTP to download commits and associated objects
from remote repositories. It now uses libcurl instead of local hack code.
Still causes warnings for fsck-cache and rev-tree, due to unshared code.
Still leaks a bit of memory due to bug copied from read-tree.
Needs libcurl post 7.7 or so.
Signed-Off-By: Daniel Barkalow <[EMAIL PROTECTED]>
Index: Makefile
===================================================================
--- ed4f6e454b40650b904ab72048b2f93a068dccc3/Makefile (mode:100644
sha1:b39b4ea37586693dd707d1d0750a9b580350ec50)
+++ d332a8ddffb50c1247491181af458970bf639942/Makefile (mode:100644
sha1:ca5dfd41b750cb1339128e4431afbbbc21bf57bb)
@@ -14,7 +14,7 @@
PROG= update-cache show-diff init-db write-tree read-tree commit-tree \
cat-file fsck-cache checkout-cache diff-tree rev-tree show-files \
- check-files ls-tree merge-tree
+ check-files ls-tree merge-tree http-get
all: $(PROG)
@@ -23,6 +23,11 @@
LIBS= -lssl -lz
+http-get: LIBS += -lcurl
+
+http-get:%:%.o read-cache.o
+ $(CC) $(CFLAGS) -o $@ $^ $(LIBS)
+
init-db: init-db.o
update-cache: update-cache.o read-cache.o
Index: http-get.c
===================================================================
--- /dev/null (tree:ed4f6e454b40650b904ab72048b2f93a068dccc3)
+++ d332a8ddffb50c1247491181af458970bf639942/http-get.c (mode:100644
sha1:106ca31239e6afe6784e7c592234406f5c149e44)
@@ -0,0 +1,126 @@
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include "cache.h"
+#include "revision.h"
+#include <errno.h>
+#include <stdio.h>
+
+#include <curl/curl.h>
+#include <curl/easy.h>
+
+static CURL *curl;
+
+static char *base;
+
+static int fetch(unsigned char *sha1)
+{
+ char *hex = sha1_to_hex(sha1);
+ char *filename = sha1_file_name(sha1);
+
+ char *url;
+ char *posn;
+ FILE *local;
+ struct stat st;
+
+ if (!stat(filename, &st)) {
+ return 0;
+ }
+
+ local = fopen(filename, "w");
+
+ if (!local) {
+ fprintf(stderr, "Couldn't open %s\n", filename);
+ return -1;
+ }
+
+ curl_easy_setopt(curl, CURLOPT_FILE, local);
+
+ url = malloc(strlen(base) + 50);
+ strcpy(url, base);
+ posn = url + strlen(base);
+ strcpy(posn, "objects/");
+ posn += 8;
+ memcpy(posn, hex, 2);
+ posn += 2;
+ *(posn++) = '/';
+ strcpy(posn, hex + 2);
+
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+
+ curl_easy_perform(curl);
+
+ fclose(local);
+
+ return 0;
+}
+
+static int process_tree(unsigned char *sha1)
+{
+ void *buffer;
+ unsigned long size;
+ char type[20];
+
+ buffer = read_sha1_file(sha1, type, &size);
+ if (!buffer)
+ return -1;
+ if (strcmp(type, "tree"))
+ return -1;
+ while (size) {
+ int len = strlen(buffer) + 1;
+ unsigned char *sha1 = buffer + len;
+ unsigned int mode;
+ int retval;
+
+ if (size < len + 20 || sscanf(buffer, "%o", &mode) != 1)
+ return -1;
+
+ buffer = sha1 + 20;
+ size -= len + 20;
+
+ retval = fetch(sha1);
+ if (retval)
+ return -1;
+
+ if (S_ISDIR(mode)) {
+ retval = process_tree(sha1);
+ if (retval)
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static int process_commit(unsigned char *sha1)
+{
+ struct revision *rev = lookup_rev(sha1);
+ if (parse_commit_object(rev))
+ return -1;
+
+ fetch(rev->tree);
+ process_tree(rev->tree);
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ char *commit_id = argv[1];
+ char *url = argv[2];
+
+ unsigned char sha1[20];
+
+ get_sha1_hex(commit_id, sha1);
+
+ curl_global_init(CURL_GLOBAL_ALL);
+
+ curl = curl_easy_init();
+
+ base = url;
+
+ fetch(sha1);
+ process_commit(sha1);
+
+ curl_global_cleanup();
+ return 0;
+}
Index: revision.h
===================================================================
--- ed4f6e454b40650b904ab72048b2f93a068dccc3/revision.h (mode:100664
sha1:28d0de3261a61f68e4e0948a25a416a515cd2e83)
+++ d332a8ddffb50c1247491181af458970bf639942/revision.h (mode:100664
sha1:523bde6e14e18bb0ecbded8f83ad4df93fc467ab)
@@ -24,6 +24,7 @@
unsigned int flags;
unsigned char sha1[20];
unsigned long date;
+ unsigned char tree[20];
struct parent *parent;
};
@@ -111,4 +112,29 @@
}
}
+static int parse_commit_object(struct revision *rev)
+{
+ if (!(rev->flags & SEEN)) {
+ void *buffer, *bufptr;
+ unsigned long size;
+ char type[20];
+ unsigned char parent[20];
+
+ rev->flags |= SEEN;
+ buffer = bufptr = read_sha1_file(rev->sha1, type, &size);
+ if (!buffer || strcmp(type, "commit"))
+ return -1;
+ get_sha1_hex(bufptr + 5, rev->tree);
+ bufptr += 46; /* "tree " + "hex sha1" + "\n" */
+ while (!memcmp(bufptr, "parent ", 7) &&
+ !get_sha1_hex(bufptr+7, parent)) {
+ add_relationship(rev, parent);
+ bufptr += 48; /* "parent " + "hex sha1" + "\n" */
+ }
+ //rev->date = parse_commit_date(bufptr);
+ free(buffer);
+ }
+ return 0;
+}
+
#endif /* REVISION_H */
-
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